Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study
Styrene is a principal waste effluent produced from polystyrene (PS) plastic-related industries, and imposes significant environmental and public health burden. Aerobic biological treatment methods are most effective and widely-applied for remediating styrene, but typically generate high biomass by-...
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sg-ntu-dr.10356-654472023-03-03T19:22:05Z Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study Tan, Amy Giin Yu Wang Jing-Yuan School of Civil and Environmental Engineering Residues and Resource Reclamation Centre DRNTU::Engineering::Environmental engineering::Waste management Styrene is a principal waste effluent produced from polystyrene (PS) plastic-related industries, and imposes significant environmental and public health burden. Aerobic biological treatment methods are most effective and widely-applied for remediating styrene, but typically generate high biomass by-product volumes, resulting in high management/disposal cost. Optimizing the bioprocesses to bioconvert styrene into commercially-valuable medium-chain-length polyhydroxyalkanoate (MCL-PHA) biopolymer could alleviate pollution and off-set biomass disposal cost. PHA production cost may be reduced, bringing it closer to commercialization. Separately, improving methods for styrene wastewater and PHA analyses is important in facilitating the work of field engineers and researchers. This PhD study developed new analytical methods, which simplified and reduced analysis prices for styrene wastewater and PHA analyses. This study also characterized the aqueous styrene-degrading bacterial community, and increased the pool of styrene-degrading cum MCL-PHA-producing bacteria. The new microbial findings are anticipated to aid future selection of seeding sludge, bioaugmentation strategies and formulation of defined microbial cocktails for enhancing styrene bioremediation and extending the process to concurrent MCL-PHA production. Doctor of Philosophy (CEE) 2015-09-28T02:42:38Z 2015-09-28T02:42:38Z 2015 2015 Thesis Tan, A. G. Y. (2015). Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/65447 10.32657/10356/65447 en 235 p. application/pdf |
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DRNTU::Engineering::Environmental engineering::Waste management Tan, Amy Giin Yu Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study |
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Styrene is a principal waste effluent produced from polystyrene (PS) plastic-related industries, and imposes significant environmental and public health burden. Aerobic biological treatment methods are most effective and widely-applied for remediating styrene, but typically generate high biomass by-product volumes, resulting in high management/disposal cost. Optimizing the bioprocesses to bioconvert styrene into commercially-valuable medium-chain-length polyhydroxyalkanoate (MCL-PHA) biopolymer could alleviate pollution and off-set biomass disposal cost. PHA production cost may be reduced, bringing it closer to commercialization. Separately, improving methods for styrene wastewater and PHA analyses is important in facilitating the work of field engineers and researchers. This PhD study developed new analytical methods, which simplified and reduced analysis prices for styrene wastewater and PHA analyses. This study also characterized the aqueous styrene-degrading bacterial community, and increased the pool of styrene-degrading cum MCL-PHA-producing bacteria. The new microbial findings are anticipated to aid future selection of seeding sludge, bioaugmentation strategies and formulation of defined microbial cocktails for enhancing styrene bioremediation and extending the process to concurrent MCL-PHA production. |
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Wang Jing-Yuan |
author_facet |
Wang Jing-Yuan Tan, Amy Giin Yu |
format |
Theses and Dissertations |
author |
Tan, Amy Giin Yu |
author_sort |
Tan, Amy Giin Yu |
title |
Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study |
title_short |
Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study |
title_full |
Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study |
title_fullStr |
Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study |
title_full_unstemmed |
Styrene bioremediation and polyhydroxyalkanoate (PHA) production : analytical methods development and microbial study |
title_sort |
styrene bioremediation and polyhydroxyalkanoate (pha) production : analytical methods development and microbial study |
publishDate |
2015 |
url |
https://hdl.handle.net/10356/65447 |
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1759855722670063616 |